[vtkusers] vtkInteractorStyleImage and QT Widget

[Alesssandro]

Il giorno 04/set/2012, alle ore 15.44, David Doria ha scritto:

>> If I do so, I get (as I would expect) an error like that: error: invalid use of incomplete type 'struct CustomWidget' each time the code point to a public member of the CustomWidget...
>> 
>> I'd like to provide you a compilable file but they are extracted from a very huge project so unfortunately it'll take time...
>> 
>> Alessandro
> 
> 
> It should work as long as you are just storing a pointer of one class
> in the other (which you are). This is the pattern:
> 
> class ClassB;
> 
> class ClassA
> {
>  ClassB* classB;
> };
> 
> class ClassB
> {
>  int data;
> };
> 
> int main(int argc, char *argv[])
> {
>  ClassA classA;
>  ClassB classB;
> 
>  return 0;
> }
> 
> Also, why are you declaring CustomWidget inside of Ui as well as outside of Ui :
> 
> namespace Ui {
>    class CustomWidget;
> }
> 
> class CustomWidget : public QWidget
> {
>    Q_OBJECT
> ...
> 
> ?
> 
> David
I do so because it is the way QT let you declare Widget with Designer form...

Ale